| 小尺度深凹地形PBL结构的数值模拟研究 |
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| 引用本文： | 蒋维楣,石勇,王卫国.小尺度深凹地形PBL结构的数值模拟研究[J].气象科学,1997(2). |
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| 作者姓名： | 蒋维楣 石勇 王卫国 |
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| 作者单位： | 南京大学大气科学系!南京，210008(蒋维楣，王卫国)，中国科学院空间科学与应用研究中心!北京，100080(石勇) |
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| 摘 要： | 本大建立了一个针对小尺度深凹地形（深凹露天矿）使用的三维非静力的诊断模式。模式中采用能量（E－）闭合方案，取细网络，具有甚高的空间分辨率。利用该模式充分分析了露天矿边界层的结构特征。数值试验的结果表明．初始地面风速，初始的风速垂直切变，露天矿的采深及边坡用的大小等因素对复环流有较大影响。
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| 关 键 词： | 小尺度深凹地形 非静力 能量闭合方案 PBL数值模拟 |
THE NUMERICAL SIMULATION STUDY ON THE PBL STRUCTURE OVER THE SMALL-SCALE CONCAVE TERRAIN |
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| Jiang Weimei.THE NUMERICAL SIMULATION STUDY ON THE PBL STRUCTURE OVER THE SMALL-SCALE CONCAVE TERRAIN[J].Scientia Meteorologica Sinica,1997(2). |
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| Authors: | Jiang Weimei |
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| Abstract: | A high-resolution, nonhydrostatic, three -dimensional dignostic PBL model for smallscale concave terrain(open pit mine )was established in this paper. In this model energy(E-)closure scheme was adopted. Using the dignostic model,characters of PBL structure over theopen pit mine were fully studied. Results of numerical experiments showed that structures ofthe circulation were related closely to initial ground surface velocity and its vertical shear,depth and angle of the mine etc. |
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| Keywords: | small-scale concave terrain nonhydrostatic energy closure scheme PBL numerical simulation |
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